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Finding the Fourth Proportional to 496,313.73, 685,034.62 and 281,579.49

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Solution

The fourth proportional to 496,313.73, 685,034.62 and 281,579.49 is: 388,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,313.73 : 685,034.62 = 281,579.49 : x
  2. Step 2: Convert to fraction form
    496,313.73/685,034.62 = 281,579.49/x
  3. Step 3: Cross multiply
    496,313.73x = 685,034.62 × 281,579.49
  4. Step 4: Simplify right side
    496,313.73x = 192,891,698,228.00
  5. Step 5: Solve for x
    x = 192,891,698,228.00/496,313.73
  6. Step 6: Final answer
    x = 388,648.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.